Gottlob warttinger



(No Model.) 2 sheetssheen 1.

G. WARTTINGER.

MACHINE BRAKE.

Patented May 4.1887.

I Mmmm.

UNITED STATES PATENT OFFICE GOTTLOB WARTTINGER, OF BERLIN, GERMANY.

MACHINE-BRAKE.

SPECIFICATION forming part of Letters Patent No. 363,441, dated May 24,1887.

Application filed April 15, 1886. Serial No. 198,918. (No model.)Patented in England April l, 1SSG,N0. 4,593; in Belgium April l5,18E6,No. 72,634; in France August 9, 1886, No. 175,262, and inAustra-Hungary September 13,1886, No. 13,826 and No.

To @ZZ whom it may concern:

Be it known that I, GoT'rLon WARTTINGER, of the city ofBerlin, intheKingdom of Prussia and Empire of Germany, have invented new and usefulImprovements in Brakes, (for which I have obtained Letters Patent in thefollowing countries: in France, No. 175,262, dated August 9, 1886; inBelgium, No. 72,634, dated April 15, 1886; in Austria-Hungary, No.13,826 and No. 41,306, dated September 13, 1886, and in Great Britain,No. 4,593, dated April 1,1886,) of which the following is a specication.

The invention consists in the combination,l

with two circular plates of which one is fastened on the Winding'drumand the other snrrounds the first loosely, of balls placed in taperingways in the outer circular plate and running on a circular track of theinner plate, brake-blocks being provided for engagement with the outercircular plate, as will be fully described and set forth hereinafter,,and iinall y be pointed out in the claims.'

ln the accompanying drawing, Figure l is a side view of a hoistingapparatus provided with my improved brake. Fig. 2 is a longitudinalsectional view of the same,`parts being broken out. Fig. 3 is a planview of the same. Fig. 4- is an enlarged detail sectional view of oneend of the drum and brake. Figs. 5 and 6 are cross-sectional viewsthrough the two circular plates on which the balls revolve.

Similar letters of reference indicate corresponding parts.

The main shaft A is journaled in a frame, A', and carries a ily-wheel,S. On said shaft the winding-drum H is mounted loosely and is providedat one end with a clutch-disk, E, with which a clutclrdisk, C', canengage, said clutch-disk C' being mounted to revolve with the shaft andtoslide on the same, and is held in the forked end of a lever, D,pivoted ou the `shaft A. A circular plato or disk, F, is provided on thesurface that faces the disk F with a hub, F2, and with the th ree ways,x y z, which are all tapered in the same direction for about twothirdsof their length. In the said ways the balls m y z are placed, which runon the annular track f of the plate F. At the highest part of the tracksw, y, and z their height is greater than the diameter of the balls; butthose sides of the ways opposite the annular track f gradually convergetoward the said track f, as shown in Figs. 5 and 6.

Brake-blocks K or brake-bands rest on the flange w of the disk F', andare connected by suitable devices with a lever, L, having the Weight M,in place ot' which weight a spring may be used.

To exclude the dust, dre., the disk or plate F is provided with acircular spline, o, which passes into a groove, p, in the outer edge ofthe flange w. The disks F F' are mounted loosely on the shaft A.

The operation is as follows: The shaft A revolves in the direction ofthe arrow, Fig. 5, when the load is to be raised. By means of the leverlD the clutch-disk C is engaged with the clutcl1-disk E, whereby thesame will also be revolved in the direction ofthe arrow, Fig. 5. Theballs m y z' remain in the lowest parts of the pocketsxyz and runloosely in the same on the outer surface of the track f. Vhen itisdesired to lower the load and uncoil the rope from the drum, theclutch-disk C is disengaged from the clutch-diskE, when, under theaction of the load, the drum is revolved a short distance in thedirection of the arrow, Fig. 6, whereby the balls x y a run toward thenarrower parts of the ways and bind against the opposite surface of thetrack f and ways,whereby the disks F F are connected to revolvetogether. As

the disk F is held by the brakeblocks or the brake-band, under theaction of the Weight M, the disk or plate F and the winding-drum arealso held. By raising the Weight M the brakeblocks are disconnected moreor less from the disk F', thus permitting the disks F F and theWinding-drum H to revolve in the Vdirection of the arrow, Fig. 6. Ifthen the drum H is revolved in the direction of the arrow, Fig. 5, byturning the shaft A and engaging the clutch` disks C and E the balls x yz run to the Wider ends ofthe pockets or Ways y z, and the drum H anddisk F can revolve Without revolving.

the disk F.

To facilitate the gripping of the balls the surface of the Ways ortracks are preferably riffled or roughened in any other suitable manner.The balls x y c are preferably made of elastic material, with or Withouta non-elastic core.

This brake can be used for windlasses, hoisting-drums, or any othermachinery in which thle movements are to be checked automatical y.

Having thus described my invention, Iclaim as new and desire to secureby Letters Patentl. The combination, with a drum, of a disk secured onthe end of the same, balls on part of said disk, and a loose diskadjacent to the disk on the end ofthe drunnwhichloose disk is providedwith pockets or Ways for the balls on the disk fastened on the end ofthe drum, and brakeblocks or brake-bands for holding the loose disk,substantially as shown and described. Y

2. The combination, with a windingdruin, of a disk on the end of thesame, balls on said disk, a disk placed adjacent to the disk on the endof the drum and provided with compartments for receiving the balls, abrake band or blocks ou the upper surface of the loose disk, and aWeighted lever connected with said brakeblocks, substantially as shownand de scribed.

3. The combination, with a Winding-drum, of the disk F, secured totheend of the same and provided With an annular track projection, f, aloose disk, F, provided with a flange,

w, and having pockets or ways a: y e, and the on the shaft and providedwith Ways or pockets for receiving balls running on the circular plateF, and brake bands or blocks on the rim of the disk F', substantially asshown and described.

5. The combination, with a Winding drum, of the disk F on the end of thesame, provided with a circular spline,y o, and a circular trackprojection, j', the loose disk F', provided with pockets for receivingballs that run on the track projection f of the disk F, the said disk Fhaving a iiange, w, provided in its circular edge withV a circulargroove, p, for receiving the spline o, and brake blocks or bands on thedisk F', substantially as shown and described.

In testimony that I claim the foregoing as my invention l have signed myname in the presence of two witnesses. Y

` GOTTLOB VARTTINGER.

Vitnesses:

B. ROI, H. SorrLoss.

